Fiat Doblo Key Fob Replacement: The Secret Life Of Fiat Doblo Key Fob Replacement How to Repair Fiat 500 Keys There are a few reasons why your Fiat 500 key FOB may not function properly. fiat 500 spare key watch" inside the key FOB can fail. This is an 3.3-volt lithium CR2032, and you can get it anywhere for less than $3. If
